<template>
  <div class="top-category">
    <div class="container">


      <!-- 一级分类组件{{ route.params.id }} -->
      <!-- 面包屑组件 -->
      <XtxBread separator="》">
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <Transition name="pop">
          <XtxBreadItem>{{ topCategory.name }}</XtxBreadItem>
        </Transition>
      </XtxBread>
      <!-- 轮播图 -->
      <Transition>
        <XtxCarousel :slides="home.bannerList" style="height: 500px" autoplay isShowInd />
      </Transition>
      <!-- 所有二级分类 -->
      <div class="sub-list">
        <h3>全部分类</h3>
        <ul>
          <li v-for="item in topCategory.children" :key="item.id">
            <a href="javascript:;">
              <img v-lazy="item.picture">
              <p>{{ item.name }}</p>
            </a>
          </li>
        </ul>
      </div>
      <!-- 分类关联商品 -->
      <div class="ref-goods" v-for="item in topCategory.children" :key="item.id">
        <div class="head">
          <h3>- {{ item.name }} -</h3>
          <p class="tag">温暖柔软，品质之选</p>
          <XtxMore />
        </div>
        <div class="body">
          <GoodsItem :goods="goods" v-for="goods in item.goods" :key="item.id" />
        </div>
      </div>
    </div>
  </div>
</template>

<script lang="ts" name="TopCategory" setup>
import { useRoute } from 'vue-router'
import useStore from '@/store';
import { storeToRefs } from 'pinia';
import { watch, watchEffect } from 'vue';
import GoodsItem from './components/goods-item.vue'
const route = useRoute()
const { category, home } = useStore()
const { topCategory } = storeToRefs(category)
// category.getTopCategory(route.params.id as string)
// 方法一 给二级路由加 key layout/index
//方式二： 监听路由上的 id的变化 只要id变化 就发送一次请求
// watch(() => route.params.id, (newVal) => {
//   //有id并且只处在一级商品分类才发请求
//   if(newVal && route.fullPath === `/category/${newVal}`){
//     category.getTopCategory(newVal as string)
//   }
// },{immediate:true})
// 方式三
watchEffect(() => {
  const id = route.params.id
  //有id并且只处在一级商品分类才发请求
  if (id && route.fullPath === `/category/${id}`) {
    category.getTopCategory(id as string)
  }
  home.getBannerList()
})
</script>

<style lang="less" scoped>
.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 100px;
  }

  .container {
    width: 1240px;
    margin: 0 auto;
    position: relative;
  }

  .sub-list {
    margin-top: 20px;
    background-color: #fff;

    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;

      li {
        width: 168px;
        height: 160px;

        a {
          text-align: center;
          display: block;
          font-size: 16px;

          img {
            width: 100px;
            height: 100px;
          }

          p {
            line-height: 40px;
          }

          &:hover {
            color: @xtxColor;
          }
        }
      }
    }
  }

  .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;

    .head {
      .xtx-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }

      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        position: relative;
        top: -20px;
      }
    }

    .body {
      display: flex;
      justify-content: flex-start;
      flex-wrap: wrap;
      padding: 0 65px 30px;
    }
  }
}
</style>